l0n : 2d dcip and tensor mt inversion models e. martinez, p.geo. m.sc. k. killin, m.sc. project...
TRANSCRIPT
L0N : 2D DCIP and Tensor MT Inversion Models L0N : 2D DCIP and Tensor MT Inversion Models
E. Martinez, P.GEO. M.Sc.E. Martinez, P.GEO. M.Sc.K. Killin, M.Sc. Project ManagerK. Killin, M.Sc. Project Manager
Quantec Geoscience Ltd.Quantec Geoscience Ltd.August, 2009 August, 2009
KETZA PROJECT, KETZA RIVER HOLDINGS LTDKETZA PROJECT, KETZA RIVER HOLDINGS LTDQUANTEC PROJECT CA00681TQUANTEC PROJECT CA00681T
TITAN-24 ARRAY - DCIP & MT SURVEY TITAN-24 ARRAY - DCIP & MT SURVEY
PRELIMINARY RESULTSPRELIMINARY RESULTS
Observed Data (Ohm-meters)
L0N- UBC 2D DC Resistivity Inversion Results (smDC)L0N- UBC 2D DC Resistivity Inversion Results (smDC)
1000m
0m
Calculated Data (Ohm-meters)
2D DC Resistivity Model (Ohm-meters)
35 iter data misfit model norm multiplier 0 4.65051E+04 0.00000E+00 0.00000E+00 1 3.28025E+04 5.05423E+01 2.59944E+01
32 1.14616E+03 1.77590E+03 5.27578E-01 33 1.14611E+03 1.75463E+03 4.88237E-01 34 1.14631E+03 1.73167E+03 5.08403E-01 35 1.14622E+03 1.71706E+03 4.80172E-01 1152 number of data
Inversion Parameters
Observed Data (milliradians)
Calculated Data (milliradians)
2D Chargeability Model (milliradians)
1000m
0m
Smooth 2D IP Chargeability Inversion using homogeneous conductivity model
L0N- UBC 2D IP Chargeability Inversion Results (L0N- UBC 2D IP Chargeability Inversion Results (smIP nullcon)smIP nullcon)
Inversion Parameters
35 iter data misfit model norm multiplier 0 3.59774E+05 0.00000E+00 0.00000E+00 1 1.86062E+05 1.87105E+03 5.37736E+02
33 1.29290E+03 3.89383E+05 1.40968E-03 34 1.29290E+03 3.84951E+05 1.40345E-03 35 1.29293E+03 3.81324E+05 1.36141E-03 1051 number of data
Smooth 2D IP Chargeability Inversion using Titan conductivity model
Observed Data (milliradians)
Calculated Data (milliradians)
2D Chargeability Model (milliradians)
L0N- UBC 2D IP Chargeability Inversion Results (smIP)L0N- UBC 2D IP Chargeability Inversion Results (smIP)
Inversion Parameters
44 iter data misfit model norm multiplier 0 3.59774E+05 0.00000E+00 0.00000E+00 1 2.73497E+05 2.13691E+02 8.55952E+02 2 1.87830E+05 9.22291E+02 1.17630E+02 42 1.17208E+03 3.69623E+05 1.11751E-03 43 1.17313E+03 3.63725E+05 1.20733E-03 44 1.17209E+03 3.60218E+05 1.12080E-03 1051 number of data
1000m
0m
smIP (milliradians) using Titan Conductivity
smIP-nullcon (milliradians) using homogeneous conductivity
smDC (Ohm-meters)L0N- UBC 2D DCIP Inversion ResultsL0N- UBC 2D DCIP Inversion Results
-1
0
1
2
3
4
Apparent Resistivity Freq Section - RhoTE unr
LOG
Fre
que
ncy
(Hz)
SW NE
N 48 E
|
050|
150|
250|
350|
450|
550|
650|
750|
850|
950|
1050|
1150|
1250|
1350|
1450|
1550|
1650|
1750|
1850|
1950|
2050|
2150|
2250|
2350
METERS0 500 1000 1500
Ohm-M
1015.825.139.863.0100158.251.398.630.10001584.2511.3981.6309.
-1
0
1
2
3
4
Apparent Resistivity Freq Section - RhoTM unr
LOG
Fre
quen
cy (
Hz)
SW NE
N 48 E
|
050|
150|
250|
350|
450|
550|
650|
750|
850|
950|
1050|
1150|
1250|
1350|
1450|
1550|
1650|
1750|
1850|
1950|
2050|
2150|
2250|
2350
METERS0 500 1000 1500
Ohm-M
1015.8
25.1
39.863.0
100
158.251.
398.630.
1000
1584.2511.
3981.
6309.
-1
0
1
2
3
4
Phase Freq Section - PhsTE unr
LOG
Fre
que
ncy
(H
z)
SW NE
N 48 E
|
050 |150
|
250 |350
|
450 |550
|
650 |750
|
850 |950
|
1050 |1150
|
1250 |1350
|
1450 |1550
|
1650 |1750
|
1850 |1950
|
2050 |2150
|
2250 |2350
METERS0 500 1000 1500
Degrees
-180-174-168-162-156-150-144-138-132-126-120-114-108-102-96
-1
0
1
2
3
4
Phase Freq Section - PhsTM unr
LO
G F
requ
ency
(H
z)
SW NE
N 48 E
|
050|
150|
250|
350|
450|
550|
650|
750|
850|
950|
1050|
1150|
1250|
1350|
1450|
1550|
1650|
1750|
1850|
1950|
2050|
2150|
2250|
2350
METERS0 500 1000 1500
Degrees
06
12
1824
30
3642
48
5460
66
7278
84
Apparent Resistivity Frequency Section TE (YX). Rho in Ohm-meters
Phase Frequency Section TE (YX). Phase in degrees
Apparent Resistivity Frequency Section TM (XY). Rho in Ohm-meters
L0N- MT Interpolated Raw DataL0N- MT Interpolated Raw Data
Phase Frequency Section TM (XY). Phase in degrees
TM (XY) Rho TM (XY) Rho Inline resistivity Inline resistivity
TE (YX) Phs- TE (YX) Phs- crossline phase crossline phase
TM (XY) PhsTM (XY) Phsinline phase inline phase
TE (YX) RhoTE (YX) RhoCrossline resistivity Crossline resistivity
2000
1000
0
2-D Model pum_htm
Dep
th (
ME
TE
RS
)
SW NE
N 48 E
|
050 |150
|
250 |350
|
450 |550
|
650 |750
|
850 |950
|
1050 |1150
|
1250 |1350
|
1450 |1550
|
1650 |1750
|
1850 |1950
|
2050 |2150
|
2250 |2350
METERS0 500 1000 1500
Ohm-M
1015.825.139.863.0100158.251.398.630.10001584.2511.3981.6309.
2000
1000
0
2-D Model pum_hrpD
epth
(M
ET
ER
S)
SW NE
N 48 E
|
050 |150
|
250 |350
|
450 |550
|
650 |750
|
850 |950
|
1050 |1150
|
1250 |1350
|
1450 |1550
|
1650 |1750
|
1850 |1950
|
2050 |2150
|
2250 |2350
METERS0 500 1000 1500
Ohm-M
1015.825.139.863.0100158.251.398.630.10001584.2511.3981.6309.
PW Unrotated model from half space resistivity = 1000 Ohm-meters. Data inverted = TM-TE (Phs+Rho)
PW Unrotated model from half space resistivity = 1000 Ohm-meters. Data inverted = TM (Phs+Rho)
MT Resistivity (Ohm-meters)
MT Resistivity (Ohm-meters)